heggem



3 sheet ssheet 1.

(No Model.)

G. O. HEGGEM. STEAM STREET ROLLER.

$10 554,421. Patentd Feb. 11, 1896.

WlT/VESSES lit 717M052 (No Model.) 7 It 3 Sheets-Sheet 2.

O. O. HEGGEM. STEAM STREET ROLLER.

No. 554,421. Patented Feb. 11, 1896.

(No Model.) 3 Sheets-Sheet 3.

0.0.HEGGEM. STEAM STREET ROLLER. No. 554,421. Patented Feb. 11, 18916.

R A255 R R R, 1 \RN W I I d a 4 5 N w G j E \H A & 4; /J O CHARLES O.HEGGEM, OF MASSILLON, OHIO, ASSIGNOR TO THE RUSSELL d7 CO., OF SAMEPLACE.

STEAM STREET-ROLLER.

SPECIFICATION forming part of Letters Patent No. 554,421, dated February11, 1896. Application filed November 5,1894. Serial No. 528,003. (Nomodel.)

To all whom it may concern:

Be it known that I, CHARLES O. HEGGEM,

a citizen of the United States, and a resident of Massillon, county ofStark, State of Ohio, have invented a new and useful Improvement inSteam Street-Rollers, of which the followin g is a full, clear, andexact description, reference being had to the accompanying drawings,making part of this specification.

My invention relates to improvements in steam street or road rollers;and it consists of certain features of construction and combination ofparts, which Will be hereinafter described and claimed.

Figure 1 is a sideelevation of a street-roller, illustrating myinvention. Fig. 2 is a plan View showing the appliances for turning theguide-wheel to direct the machine. Fig. 3 is a similar View of a part ofthe appliances for guiding the machine, enlarged. Fig. 4 is alongitudinal section of guiding mechanism, showing the parts adapted forhand or power steering. Fig. 5 is a cross-section from 00 to 00. Fig. 6is a longitudinal vertical section from 2 to z.

A represents the steam-boiler, on which is mounted steam-cylinder B,having a 'pitman connection with crank-wheel C, mounted on cross-shafta. On the other end portion of said shaft is placed a clutch-wheel D, onthe hub of which is secured a spur-wheel E. (See Figs. 2, 11, and 12.)WVheel E engages wheel F on shaft G, on the opposite end of which ismounted a spur-pinion'I'I, that engages gearwheel J, which carriesbevel-pinions, as b, that engage the two bevel-wheels 0 cl, that areconnected, one with the axle-shaft c, the other with the hub of rollerK, thus forming a continuous train of driving gear-wheels, connectingthe piston of the engine and transmitting power through the wheels E, F,H and J and the equalizing-gears to both of the largerear rollers, K andL.

The front or guide rollers, M and N, are journaled loosely on shaftO,secured in frame F. In the front and rear sides of the frame P areprovided sockets in which are pivotally secured the prongs g of theswivel-yoke Q. At the top of the yoke Q is provided a spindle portionthat enters and is journaled in journal-boX R. Secured to the front sideof the smoke-box, and to the right and left sides of frame P arecircular angle-bars S, that form a support for the chain T, and throughwhich the chain is connected with the guide-roller frame P.

At the lower righthand side of the watertank U a chain-pulley h, and atthe left-hand side a chain-wheel or sprocket 7c, is mounted on shaft Z,journaled in suitable bearings secured to the water-tank and boiler, atthe upper end of which is provided a wormwheel m that engages a worm non horizontal shaft 1:), that extends back to a hand and power actuatingmechanism, that will be hereinafter explained.

The guide-chain T is placed about the pulley h and sprocket-wheel m, theends placed on the flanged circular supports S and secured to eyebolts qthat are passed through lugs r on front end of bar S, and to draw thechain tight about the circular frame S and wheels h and m the nuts t areturned onto the threaded portion of the eyebolt q. I wish to heldagainst movement by the Worm n engaging the worm-whee1 m, and can onlybe moved by the hand or power guiding mechanism, which I will nowdescribe.

A represents a spur-wheel mounted on the engine-shaft a, as shown, saidwheel engaging a similar wheel B, mounted on a'shaft C, j ournaled inbracket D. On the left-hand end of said shaft C is mounted a similarwheel that engages wheel F on shaft C, (see Fig. 4,) and on said shaftis mounted a miter or bevel wheel 11, that engages a similar wheel J,mounted on shaft 19, and a similar Wheel mounted on sleeve L, that isloosely mounted on shaft 19. On the inner face of the Wheels J and K areprovided flanges u, having tapering inside faces that form taperingsockets o, that are rotated in opposite directions by bevel-Wheel H, andon the front end of the sleeve L is provided a double-coned head X,

adapted to engage the tapering face 1; of the flange u, on which issecured a leather facing to.

The sleeve L is journaled in frame-piece M that is secured to theboiler; the cylinder portion a projected rearwardly and is provided witha helix or curved slot b, as shown in Fig. 3 and indicated by the dottedlines in Fig. 4. At the rear end portion of the sleeve L, which issecured in a sliding relation with the shaft 19 by the spline i, asshown in Fig. 4, is provided an annular groove 0, in which is placed aroller, as d, loosely secured to a semicircular block 6' by the pin fAsleeve, as g, integral or connected with the hand- Wheel h, is passedonto the cylinder portion a of the support M, the slotj to receive theoutwardly-projeeted end of the pin f. (See Fig. 3.) The rear end portionof the shaft 1) is enlarged, as shown in Fig. 4, and in the enlargedportion are provided annular grooves 7c and Z, and at the end is secureda cap portion on, having a forwardly-projected lug n, adapted to entersocket o in the rear face of the hub of the hand-wheel h, and in saidwheel and carried thereby is provided a locking-bolt 19 the inner end ofwhich is adapted to pass alternately into the grooves 76 and Z.

Figs. 2 and 4 illustrate the parts in position, adapted for powersteering, the roller d at the central portion of the helix 1). The conedhead is held from engagement with the wheels J and K, which arecontinuously rotated, by the described gear connection with the e11-gine-shaft. Now to throw the steering mechanism into engagement to turnthe guidewheels to the right or left, the hand-wheel h is turned tocarry the roller CZ toward the end of the helix, by which the sleeve Lwill be moved forward or back to carry the cone-head X into engagementwith one of the wheels J or K to rotate the shaft 19 and worm n toopcrate the mechanism connecting the worm in the guide-wheel frame.

To adjust the machine forhand-steering, the bolt pis drawn from grooveZ, the wheel. and sleeve g drawn back to the rear of pin f, the lug n inthe socket o, and the bolt passed into groove k. The wheel is nowengaged with the shaft 19 and may be rotated by the handle g to rotatethe Worm n, wheelm, sprocket-wheel Z0, and chain T to turn the frame P.

On the right-hand end of the engine-shaft a is mounted a fly-wheel Ahaving the rim overhung, to form an inside clutch. To operate the clutcha bell-crank g is pivoted to a support, as 72 one end of said crank torest in the groove 0 in sleeve E the other end having a link connectionj with an actuating hand-lever This clutch feature is one of great valuein street or road rollers, a machine which in use frequently drops intopositions it cannot readily be started from, an initial point by theengine, when coupled to the machine, .but if when means as described areprovided, the engine may be uncoupled from the machine, and put intooperation, and when a considerable speed has been attained, theclutch-shoes may be thrown into engagement with the fly-wheel A themomentum of which will greatly assist in starting the machine.

To clean the rear wheels or rollers, K and L, a scraper is applied, asshown in Fig.1, and a bracket, as O ,is secured to the front side of thewater-tank D In the bracket is j ournaled a supporting-shaft Z ,to whichare secured arms as m that carry the scraper R and to hold the scraperagainst the roller a weight, as 0 is secured on the shaft, as shown,(see Fig. 1.3,) and to hold the scraper away from the roller thecounterweight maybe thrown forward of the shaft. On the shaft Z isprovided a sleeve 19 to which arms 9 are secured, on the outer end ofwhich is placed a scraper 1' similar to 02 (See Fig. 2.) This isprovided to scrape the roller when on reverse movement.

To clean the front rollers, a scraper E is provided, which is pivotallysupported on the roller-frame bya hanger, as seen in Fig. l.

I wish to call attention to construction of the guide-wheel support andyoke Q, by which guide-wheel frame is connected to front end of themachine. Asheretofore constructed the yoke has been placed with theprongs transverse, or either side of central line of draft, whicharrangement limited the vertical end movement of the guide-rollers. Toremedy this, I have placed the yoke Q on a line horizontally through theboiler, the prongs astride the guide-rollers and pivotally connectedwith the front and rear sides of the frame P, thus giving the endportions of the frame and rollers a wide range of vertical movement,with substantially little or no lateral move ment of the front end ofthe boiler, and, furthermore, the strength of the yoke is applied in theright direction, the truss being in the line of movement, there beinglittle or no lat eral pressure of the yoke.

Having thus fully described the nature of my invention, what I claimis- 1. The combination in a steam street-roller of the guide-rollers,and means for manually operating said rollers to guide the machine, ofan interchangeable power mechanism, comprising bevel-wheel H, engagingsimilar wheels J and K, having flanges u, that form concaved sockets, asleeve L, supported in the cylinder portion ofthe support M, and engagedwith shaft 19, by a spline as Z, having at its front end a double conedor truncated head X, adapted to engage the concaved sockets in thewheels J and K, and at its front end an annular groove 0, block 6 insaid groove, roller d and pin f, helix or curved slot Z7, sleeve g,having a slot as j, and the hand-wheel h, groove Z, and bolt 19, bywhich said wheel is held against longitudinal movement on the shaft 19,but may be rotated with the sleeve g, to move the roller cZ, in thehelix, to carry the sleeve forward or back to engage the cone X, withthe wheels J and K, and a gear connecting the wheel H with the engine-shaft, substantially as described and for the purpose set forth.

2. The combination in a guide-Wheel steering apparatus, of the shaft 19,worm and Worm- Wheel and chain, adapted for engagement With the shaft19, to rotate the shaft and Worm, to operate the guide-wheel, and apower steer ing mechanism, comprising a friction-surface, having ageared connection With the engine, by which they are continuouslyrotated in opposite directions, friction-surfaces adapted to be movedinto engagement with the continuously-rotating clutch-surfaces, androtated thereby, to turn the shaft 19, in desired direction, the supportM, cylindrical projection a, spiral groove 1), sleeve L, groove 0, block(2, roller cl, and pin f; sleeve g, havinga horizontal slot j, therein,roller cl, pin f, and the hand-Wheel h, substantially as described andfor the purpose set forth.

The combination in a combined hand and power steering mechanism, of theslidable sleeve L, having an annular groove as c, therein, arearWardly-projected cylindrical support a, having therein a helix orspirallyinclined groove or slot 1), the pin f in said slot, and securedto block 6 in groove 0, sleeve 9, having a longitudinal slot j, toembrace the pin f, and a hand-wheel to rotate the sleeve g, to move thepin f in the slot, to slide the sleeve L, on shaft h, to engage anddisengage the friction-surfaces connecting the sleeve L and shaft h,with the engine, substantially as described.

In testimony whereof I have hereunto set my hand this 23d day ofOctober, A. D. 1894.

CHARLES O. HEGGEM.

WVitnesses:

CHAS. R. MILLER, W. K. MILLER.

